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unit 3 vocab rodney

plate tectonics

TermDefinition
Asthenosphere the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
Subduction the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
Mantle convection Mantle convection is the very slow creeping motion of Earth's solid silicate mantle caused by convection currents carrying heat from the interior to the planet's surface.
Ridge push Ridge push (also known as gravitational sliding) or sliding plate force is a proposed driving force for plate motion in plate tectonics that occurs at mid-ocean ridges
Slab pull What is Slab Pull? Slab pull is the pulling force exerted by a cold, dense oceanic plate plunging into the mantle due to its own weight.
Tectonic plate Plate tectonics is a scientific theory describing the large-scale motion of seven large plates and the movements of a larger number
Convergent boundary A convergent boundary is an area on Earth where two or more lithospheric plates collide. One plate eventually slides beneath the other causing a process known as subduction.
Divergent boundary In plate tectonics, a divergent boundary or divergent plate boundary (also known as a constructive boundary or an extensional boundary) is a linear feature that exists
Transform boundary Transform boundaries are places where plates slide sideways past each other. At transform boundaries lithosphere is neither created nor destroyed.
earthquake a sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust or volcanic action.
volcano A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape
Created by: 23rodney21
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